DeWalt DWS780 Instruction Manual page 5

For your convenience and safety, the following warning labels are on your miter saw.
ON MOTOR ENDCAP:
TO REDUCE THE RISK OF INJURY, USER MUST READ INSTRUCTION MANUAL. WEAR EYE
PROTEXCTION AND RESPIRATORY PROTECTION. USE ONLY IDENTICAL REPLACEMENT PARTS.
DO NOT EXPOSE TO RAIN OR USE IN DAMP LOCATIONS.
ON FENCE:
ALWAYS ADJUST FENCE PROPERLY BEFORE USE. CLAMP SMALL PIECES BEFORE CUTTING.
SEE MANUAL.
ON GUARD:
DANGER–KEEP AWAY FROM BLADE.
ON UPPER GUARD:
PROPERLY SECURE BRACKET WITH BOTH SCREWS BEFORE USE.
ON TABLE: (2 PLACES)
WARNING: KEEP HANDS AND BODY OUT OF THE PATH OF THE
SAW BLADE. CONTACT WITH BLADE WILL RESULT IN SERIOUS
INJURY. DO NOT OPERATE SAW WITHOUT GUARDS IN PLACE.
CHECK GUARDING SYSTEM TO MAKE SURE IT IS FUNCTIONING
CORRECTLY. DO NOT PERFORM ANY OPERATION FREEHAND.
NEVER REACH IN BACK OF SAW BLADE TURN OFF TOOL
AND WAIT FOR SAW BLADE TO STOP BEFORE MOVING WORKPIECE OR CHANGING
SETTINGS OR MOVING HANDS. NEVER CROSS ARMS IN FRONT OF BLADE. ALWAYS
TIGHTEN ADJUSTMENT KNOBS BEFORE EACH USE. DISCONNECT POWER BEFORE
CHANGING BLADE OR SERVICING.
ON TABLE: (2 PLACES)
Double Insulation
Double insulated tools are constructed throughout with two separate layers of electrical
insulation or one single layer of reinforced insulation between you and the tool's electrical
system. Tools built with this insulation system are not intended to be grounded. As a result,
your tool is equipped with a two prong plug which permits you to use extension cords without
concern for maintaining a ground connection.
NOTE: Double insulation does not take the place of normal safety precautions when operating
this tool. The secondary insulation system is for protection against injury resulting from a possible
failure of the primary insulation within the tool.
CAUTION: WHEN SERVICING USE ONLY IDENTICAL REPLACEMENT PARTS. Repair or replace
damaged cords.
Polarized Plugs
Polarized plugs (one blade is wider than the other) are used on equipment to reduce the risk of
electric shock. When provided, this plug will fit in the polarized outlet only one way. If the plug
does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified electrician
to install the proper outlet. Do not change the plug in any way.
Electrical Connection
Be sure your power supply agrees with the nameplate marking. 120 volts, AC means that your
saw will operate on alternating current only. A voltage decrease of 10 percent or more will cause
a loss of power and overheating. All D
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check the power supply.
Specifications
Capacity of cut
50° miter left and 60° miter right
49º bevel left and right
0° miter
Max. Height 4.4" (112 mm)
Max. Width 13.75" (349 mm)
45° miter
Max. Height 4.4" (112 mm)
Max. Width 9.6" (244 mm)
45° bevel - Left
Max. Height 3.1" (79 mm)
Max. Width 13.75" (349 mm)
45º bevel - Right
Max. Width 2.2" (56 mm)
Max. Height 13.75" (349 mm)
Your saw is capable of cutting baseboard moldings 0.75" (19 mm) thick by 6.5" (165 mm) tall
on a 45° right or left miter.
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WALT tools are factory tested. If this tool does not operate,
Resulting Width 9.1" (231 mm)
Resulting Height 3.0" (76 mm)
Resulting Width 5.8" (147 mm)
Resulting Height 3.0" (76 mm)
Resulting Width 11.4" (290 mm)
Resulting Height 1.7" (43 mm)
Resulting Height 11.4" (290 mm)
Resulting Width 1.1" (28 mm)
Drive
120 Volt motor
15 Amp motor
3800 RPM
Cut helical gears
Multi-V belt
Carbide tooth blade
Automatic electric brake
Unpacking Your Saw
Check the contents of your miter saw carton to make sure that you have received all parts. In
addition to this instruction manual, the carton should contain:
1 DWS780 miter saw
1 D WALT 12" (305 mm) diameter saw blade
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In bag:
1 Blade wrench
1 Material clamp
1 Instruction manual
Intended Use
This heavy duty miter saw is designed for professional wood cutting applications.
DO NOT use under wet conditions or in presence of flammable liquids or gases.
This miter saw is a professional power tool. DO NOT let children come into contact with the tool.
Supervision is required when inexperienced operators use this tool.
Familiarization (Fig. A, B)
Your miter saw is not fully assembled in the carton.Refer to the Assembly section for assembly
instructions. Open the box and lift the saw out by the convenient carrying handle
in Figure B.
Place the saw on a smooth, flat surface such as a workbench or strong table.
Examine Figure A to become familiar with the saw and its various parts. The section on
adjustments will refer to these terms and you must know what and where the parts are.
CAUTION: Pinch Hazard. To reduce the risk of injury, keep thumb underneath the handle
when pulling the handle down. The lower guard will move up as the handle is pulled down
which could cause pinching.The handle is placed close to the guard for special cuts.
Press down lightly on the operating handle
downward pressure and hold the arm allowing it to rise to its full height. Use the lock down pin
when carrying the saw from one place to another. Always use the lifting handle
the saw or the hand indentations 9 shown in Figure A.
Fig. B
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Bench Mounting (Fig. A)
Mounting holes 3 are provided in all 4 feet to facilitate bench mounting, as shown in Figure A.
(Two different-sized holes are provided to accommodate different sizes of screws. Use either
hole, it is not necessary to use both.) Always mount your saw firmly to a stable surface to prevent
movement. To enhance the tool's portability, it can be mounted to a piece of 1/2" (12.7 mm) or
thicker plywood which can then be clamped to your work support or moved to other job sites
and reclamped.
NOTE: If you elect to mount your saw to a piece of plywood, make sure that the mounting
screws don't protrude from the bottom of the wood. The plywood must sit flush on the work
support. When clamping the saw to any work surface, clamp only on the clamping bosses where
the mounting screw holes are located. Clamping at any other point will surely interfere with the
proper operation of the saw.
CAUTION: To prevent binding and inaccuracy, be sure the mounting surface is not warped
or otherwise uneven. If the saw rocks on the surface place a thin piece of material under one
saw foot until the saw sits firmly on the mounting surface.
Transporting the Saw (Fig. A)
WARNING: To reduce the risk of serious personal injury, turn off the tool and
disconnect it from the power source before attempting to move it, change
accessories or make any adjustments.
WARNING: To reduce the risk of serious personal injury, always lock the rail lock
knob 29 , miter lock handle 5
adjustment knobs 14 before transporting saw.
In order to conveniently carry the miter saw from place to place, a carrying handle
included on the top of the saw arm and hand indentations
2 and pull lock down pin 17 . Gently release the
, bevel lock knob 11 , lock down pin
9 in the base, as shown in Figure A.
, as shown
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13 to transport
17 and fence
has been
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